Crankshaft ion nitriding process status

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And processing other nitriding parts are similar to crankshaft ion nitriding process to want to pass commonly play arc, temperature, thermal insulation, cooling and four stages, including the furnace charging, take roughly 18 hours. Different manufacturers in ion nitriding process in a slightly different.high-speed bearings
About deformation, as long as the aging treatment good (about 2 ~ 4 hours), uniform temperature can ensure deformation is lesser, weifang diesel engine plant of nitriding crankshaft axial beating generally not more than 3 wire.
About soft nitriding, dalian diesel engine factory using ammonia and acetone method, heat preservation time for 5 hours according to reflect ion nitrocarburizing than nitrogen deformation to slightly bigger, according to us in dongfeng automobile factory processing channel plate and drive ring experience, using ammonia and propane gas for ion nitrocarburizing treatment, process easier to control.cross roller bearing
I recently developed high power pulse power, average power has set up a file in the 120 a above, alr eady can fully satisfy the 150 kw furnace for nitrogen requirements. New pulse power supply through examination and the power of the than in the past its stability reliability better. Due to tell the current limiting resistor, that a can power saving is about 20%, and other characteristics of pulse power supply, with a certain conditions, the largest power saving can reach 50%. The pulse power supply, playing arc time is shortened, the oil hole don t plugging make auxiliary furnace charging time is shortened, the power supply the operation is simple, easy to control.spindle bearings